Boot



FIG. 1 is a perspective view of a boot.

FIG. 2 is a front view of the boot.

FIG. 3 is a right side view of the boot.

FIG. 4 is a left side view of the boot.

FIG. 5 is a rear view of the boot.

FIG. 6 is a bottom view of the boot; and,

FIG. 7 is a top view of the boot.

The broken lines illustrate environmental structure and form no part of the claimed design. 

The ornamental design for a boot, as shown and described. 